Shettles and Rorvik recommended that to have a girl, a couple should have intercourse ____
a. 2 to 3 days before ovulation and douche with a mixture of baking soda and water
b. 2 to 3 days before ovulation and douche with a mixture of vinegar and water
c. close to ovulation and douche with a mixture of vinegar and water
d. close to ovulation and douche with a mixture of baking soda and water
B
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According to the diathesis-stress model, psychopathology results when
a. a stressful event triggers an already existing vulnerability or predisposition. b. the id develops. c. a gene that is programmed to activate at a certain point during the lifespan "turns on" without any trigger. d. a mentally healthy person takes a psychoactive drug.
Adenine, thymine, guanine, and cytosine are
a. enzymes or organic catalysts. b. the building blocks of RNA. c. sex-specific alleles. d. dominant Mendelian traits. e. the building blocks of DNA.
Sara has an extra chromosome on her twenty-first pair of chromosomes. What disorder does Sara have?
A. hemophilia B. fragile X syndrome C. sickle-cell anemia D. Down syndrome
Which of the following assessment strategies would likely produce the most consistent studying effort from students in class?
a. unit exams every 3 chapters b. weekly quizzes c. pop quizzes